Thin-Filament Pyrometry: A Novel Thermometry Technique for Combusting Flows

[+] Author and Article Information
L. P. Goss, V. Vilimpoc, B. Sarka, W. F. Lynn

Systems Research Laboratories, A Division of Arvin/Calspan, Dayton, OH 45440-3696

J. Eng. Gas Turbines Power 111(1), 46-52 (Jan 01, 1989) (7 pages) doi:10.1115/1.3240226 History: Received January 07, 1988; Online October 15, 2009


A novel technique is described for making temperature measurements in a combusting flow. The technique, Thin-Filament Pyrometry, is based on the blackbody emission of a small ceramic filament (15 μm), which is introduced into the flow field under study. Because the emission along the entire length of the filament is recorded, the complete spatial temperature distribution is measured. The temporal response of the filament is ∼ 700 Hz under ambient conditions. To demonstrate the capabilities of the technique in a combusting flow, a H2 -N2 jet diffusion flame was studied. The evolution of the large-scale buoyancy-driven structures at low Reynolds numbers was followed by this technique.

Copyright © 1989 by ASME
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